Wainwright (WANE-rite) (Ulġuniq[pronunciation?] in Iñupiaq), also known as Ulguniq or Kuuk,[pronunciation?] is a city in North Slope Borough, Alaska, United States. At the 2010 census the population was 556, making it the third largest city in the North Slope Borough, up from 546 in 2000. The community was named after Wainwright Lagoon, which in turn was named after Lt. John Wainwright, an officer under Capt. F.W. Beechey, who both discovered the lagoon in 1826. An unincorporated area known as Wainwright Inlet by 1890, Wainwright was founded as an incorporated municipality in 1904.